I would like to develop an own application. I have just started to learn C. However on the Internet I found a site (Ozeki C# VoIP SDK - A SIP SDK for software developers) that offered various sample programs. The samples are based on an SDK called Ozeki VoIP SIP SDK. The thing is that they are in C# and I do not know that programming language. Is there a way you could help me how to start evaluating this software? Or should I wait until I gain more experience in C#?

Thanks for your answers.